Experimental study of the dynamic response of architectural glasses under vented explosion loads of methane-air mixtures

In order to study the dynamic response characteristics and anti-deformation ability of different architectural glass under the action of gas explosion, four types of architectural glass, namely tempered glass, laminated glass, hollow glass and float glass, were selected as test samples. The explosion test is carried out by changing the thickness of the glass specimen, the gas concentration and the explosion venting material and other factors under the condition of fixed support on four sides. The results show that different types of architectural glass have different anti-explosion capabilities, so the failure mode and crack distribution under the action of gas explosion are different. With the increase of the thickness of the structure layer, the anti-explosion ability of different building glasses is improved. When the concentration of methane is close to the stoichiometric concentration or the strength of venting material is higher, the dynamic response of the glass specimen is more violent and even destroyed. At the same time, the finite element software LS-DYNA was used for numerical analysis of the single layer glass test model. The failure mode and crack distribution obtained were basically consistent with the test results, which verified the reliability of the numerical simulation method.